iphone的声音

设置Info.plist开启后台运行

添加Required background modes.并添加值:App plays audio

添加代码:

[[AVAudioSession sharedInstance] setActive:YES error:nil];

[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];

- (void)play:(NSString*)soundName

{

    if (soundName) 

    {

         //创建音乐文件路径,可以选其他格式

        NSString *musicFilePath = [[NSBundle mainBundle] pathForResource:soundName ofType:@"caf"];      

        NSURL *soundFileURL = [[NSURL alloc] initFileURLWithPath:musicFilePath];  

        AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:nil];

        [newPlayer prepareToPlay];

        [newPlayer setVolume: 1.0];

        

        //播放

        [newPlayer play];

    }

}